Vacheron Constantin perpetual calendar, but 100k+ for a watch is absurd regardless, but shew, what a beaut.
http://www.vacheron-constantin.com/en2/watches/traditionnelle/patrimony traditionnelle chronograph perpetual calendar-47292-000P-9510.html
http://www.vacheron-constantin.com/en2/watches/traditionnelle/patrimony traditionnelle chronograph perpetual calendar-47292-000P-9510.html